code: def _has_backref(obj):
      this_dir = os.path.dirname(__file__)
      path = os.path.join(
          this_dir, "gen_modules", "backreferences", f"{obj}.examples"
      )
      return os.path.isfile(path) and os.path.getsize(path) > 0
  
file_path: audio/docs/source/conf.py
imports: import os
  import re
  import sys
  import warnings
  from datetime import datetime
  import pytorch_sphinx_theme
  from docutils import nodes
  from sphinx import addnodes
  from sphinx.util.docfields import TypedField
  from custom_directives import CustomCardEnd, CustomCardItem, CustomCardStart, SupportedDevices, SupportedProperties
  from docutils.parsers import rst
label_desc: Use image node_id 5 for calling a global function with example usage: _has_backref(obj) and returns: unknown